33 lines
483 B
C
33 lines
483 B
C
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#include <pentabug/timer.h>
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#include <stdlib.h>
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#include <avr/io.h>
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#include <avr/interrupt.h>
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static timer_fun current_fun = NULL;
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void start_timer(uint8_t scaler, uint16_t compare, timer_fun fun) {
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current_fun = fun;
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TCCR1A = 0;
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TCCR1B = (1 << WGM12) | scaler;
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TIMSK1 = 1 << OCIE1A;
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OCR1A = compare;
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}
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void stop_timer(void) {
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current_fun = NULL;
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TIMSK1 = 0;
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TCCR1A = 0;
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TCCR1B = 0;
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}
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ISR(TIMER1_COMPA_vect, ISR_NOBLOCK) {
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if(current_fun) {
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current_fun();
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}
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}
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